Vulnerability Description
Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted LUA script to read out-of-bound data or crash the server and subsequent denial of service. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to block a script by restricting both the EVAL and FUNCTION command families.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redis | Redis | < 6.2.20 |
Related Weaknesses (CWE)
References
- https://github.com/redis/redis/commit/3a1624da2449ac3dbfc4bdaed43adf77a0b7bfbaPatch
- https://github.com/redis/redis/releases/tag/8.2.2Release Notes
- https://github.com/redis/redis/security/advisories/GHSA-4c68-q8q8-3g4fThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-detect-redis-vulnerabilityThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-mitigate-redis-vulnerabiliMitigationThird Party Advisory
FAQ
What is CVE-2025-46819?
CVE-2025-46819 is a vulnerability with a CVSS score of 6.3 (MEDIUM). Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted LUA script to read out-of-bound data or crash the ser...
How severe is CVE-2025-46819?
CVE-2025-46819 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-46819?
Check the references section above for vendor advisories and patch information. Affected products include: Redis Redis.